have experienced a similar battery. This is the insect which Gilbert White, in his letters from Selborne, describes as having found in numbers at Mount Caburn, near Lewes, a spot I have often visited in my schoolboy days. This section is subject to the parasitism of the genus _Melecta_, whose incursions are very repugnant to them, and which they exhibit in very fierce pugnacity, for if they catch the intruder in her invasion they will draw her forth and deliver battle with great fury. I have seen both the combatants rolling in the dust, the combat and escape made perhaps easier to the _Melecta_ by the load the _Anthophora_ was bearing home. Upon the larva also of this bee it is said that the larva of the Heteromerous genus _Meloë_ is nurtured; this I have never been able to verify, but I believe the fact is fully confirmed. This beetle is closely allied to the _Cantharides_, or blister-beetles, and it itself exudes a very acrimonious yellow liquid when touched or irritated. Two of the _Chalcididæ_ also infest their larvæ, which they destroy; one is the _Melittobia_, named thus from its preying upon bees; it, like the majority of its tribe, is exceedingly minute, and of a shining dark green metallic colour. It is peculiar from having its lateral eyes simple, and in possessing besides three ocelli. The other genus is _Monodontomeris_, an equally small insect, which, although living upon the larva of _Anthophora_, is equally preyed upon by that of the _Melittobia_. The universal scourge, _Forficula_, is a great devastator of these colonies, where, of course, it revels in its destructive propensities. The insects of the second division I have never been able to track to their burrows, but have always caught them either on the wing or on flowers, especially upon those of the common Mallow, and I have found both species all round London. They are said also to frequent the Dead Nettle (_Lamium purpureum_). The _A. quadrimaculata_ burrows in banks, and its processes are scarcely different from those of the preceding species, only its habits are solitary. In flight it is exceedingly rapid, and thus much resembles _Saropoda_. But the _A. furcata_ bores into putrescent wood, in which it forms a longitudinal pipe subdivided into nine or ten oval divisions, separated from each other by agglutinated scrapings of the same material, very much masticated, the closing of each forming a sharp sort of cornice; each of these cells is about half an inch in length, and three-tenths of an inch in diameter, the separations between them being about a line thick. These pipes or cylinders run parallel to the sides of the wood thus bored, an angle being made both at its commencement and its termination, and thus the latter permits the ready escape of the developed imago nearest that extremity, which being the first deposited, that cell being the first constructed, it necessarily becomes the first transmuted, and thus has not to wait for the egress of all above it.